Anything breaded or with crust, really, is a little gross in the microwave, and much, much better in a toaster oven. Calzones, for example, are another leftover made amazing by toaster ovens. Had some leftover chicken pot pie last night re-baked in the ol' toaster oven...delicious.
Technically, I guess you can put all that stuff in a regular oven, but it takes longer and is more hassle.